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Finding the Fourth Proportional to 735.85, 1,103.23 and 718.57

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Solution

The fourth proportional to 735.85, 1,103.23 and 718.57 is: 1,077.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    735.85 : 1,103.23 = 718.57 : x
  2. Step 2: Convert to fraction form
    735.85/1,103.23 = 718.57/x
  3. Step 3: Cross multiply
    735.85x = 1,103.23 × 718.57
  4. Step 4: Simplify right side
    735.85x = 792,747.98
  5. Step 5: Solve for x
    x = 792,747.98/735.85
  6. Step 6: Final answer
    x = 1,077.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.